Traffic Emissions Articles
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Black carbon emissions of individual cars measured under real conditions
Measurements of individual vehicle emissions are usually made in laboratory tests. In this study, researchers followed cars driving in real conditions to measure emissions of air pollutants, including black carbon and nitrogen oxides. The study shows that diesel cars contribute disproportionately to air pollution, and highlights the value of on-road measurements. Vehicle traffic is a major ...
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Project - Sensefields - Environmental monitoring for intelligent traffic solution
CUSTOMER: Sensefields USER: Sistema ECO-AFORO LOCATION: Ciudad de Puebla, México ENVIRONMENT: Urbano, centro ciudad YEAR: 2016 Development in collaboration with Sensefields of a high-performance combined system for the optimization of traffic lights according to traffic congestion and environmental pollution. It monitors parameters such as CO, NO2, O3, NO, PM1, PM2,5, PM10 and ...
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Technological solutions and behavioural change needed to decarbonise transport
While the transport sector contributes significantly to society and the economy it also can cause substantial adverse impacts on the environment, global climate and human health. A new report by the European Environment Agency (EEA) analyses key environmental trends with a view to identifying what has improved and what has hampered the past performance of the transport sector. The transport ...
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Geodesign: integrating geographical sciences and creative design in envisioning a 'New Urban Europe'
This paper reflects on the emerging concept of geodesign (a technological integration of spatial design and geographic and information sciences) and how it can be used to promote visionary goals for urban development. It moves on to review the recently proposed research agenda for urban studies, entitled: 'New Urban Europe' and draws links between the geodesign steps and those proposed research ...
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High O 3 episodes in Thailand’s Bangkok Metropolitan Regions: sources, spatio-temporal variations and associations with O 3 precursors and meteorological factors
High ozone levels were often observed from December to April at suburban stations in the Bangkok Metropolitan Region (BMR). Wind direction analyses show significant roles of air masses from outside BMR on elevating the BMR O 3 levels. These air masses include biomass burning smoke from the northwestern BMR and sea spray from the Gulf of Thailand mixing with industrial emissions from the ...
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Airparif uses Isatis to process 11 million+ mesh grids and generate daily air quality maps - Case Study
Isatis has been part of Airparif data processing workflow for 10+ years. The software is used daily to gather data and map air pollution over Paris area. The facts Airparif is part of the French AASQA network (“Associations Agréées de Surveillance de la Qualité de l’Air”). The AASQA are a French non-profit association accredited by the French Ministry of ...
By Geovariances
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Operational background air pollution prediction over Slovenia by QualeAria modelling system – validation
Slovenia is a country of very complex terrain and many problems with air pollution in the valleys, canyons and basins, where industrial air pollution is combined with traffic and domestic heating air pollution, giving rise to problems for the health impact and the ecosystems directly or indirectly. Among indirect effects is also effect on solar radiation budget because of photochemical smog and ...
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Local PM10 source apportionment for non-attainment areas in Slovakia
The method used for the PM10 source apportionment in 18 air quality management areas (AQMAs) in Slovakia is presented, as well as the results of the study. Local PM10 emissions include traffic emissions, local seasonal heating sources from residential housing, industrial and point sources, and fugitive sources. Mathematical modelling has been performed using CALPUFF model, driven by ...
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Determinating the influence of different PM 10 sources on air quality in Ljubljana basin with CALPUFF dispersion model
Ljubljana has an unfavourable geographical location in the basin, almost entirely surrounded by high hills. Winds in the basin are often weak and situations with temperature inversion are very frequent, therefore, many PM 10 daily limit value exceedances were observed in 2011. The Directive 2008/50/EC (EU, 2008) requires member states to adjust or provide new air quality plans in order to ...
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Bentofix® sealing at Toulouse-Blagnac Airport case study
One of the largest infrastructure projects in Europe in recent years has been in Toulouse-Blagnac in France on the premises of the airport and the Airbus factory where in future the new Airbus A 380 is to be built. During the course of this construction project not only hangers where the wide-bodied aircraft is to be assembled were built but the whole infrastructure was aligned to accommodate ...
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Modelling of air pollution in the area of Algiers City, Algeria
Algiers is the political and economic capital of Algeria. The city drains a large part of the activities of the country with intense road traffic. This road traffic is the main source of air pollution, followed by industry and waste combustion. An application of the new road traffic emission model, called EMISENS, is performed to build road traffic emission inventories for the Algiers region. ...
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The Bright Side of the Megacity
Writing in Foreign Policy, journalist Jonathan Kalan argues that the media, environmentalists and non-governmental organizations focus too much on problems in the world’s megacities (cities where the population is greater than 10 million), such as air pollution and traffic. “Megacities hold enormous value for the developing world,” Kalan writes, “and ensuring that they ...
By Ensia
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Treatment of suspended solids and heavy metals from urban stormwater runoff by a tree box filter
Particulates, inorganic and toxic constituents are the most common pollutants associated with urban stormwater runoff. Heavy metals such as chromium, nickel, copper, zinc, cadmium and lead are found to be in high concentration on paved roads or parking lots due to vehicle emissions. In order to control the rapid increase of pollutant loads in stormwater runoff, the Korean Ministry of ...
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Introduction of Automotive Testing Department
Strongly linked with the automotive industry, the history of automotive testing business by HORIBA Group has developed itself along with innovative automotive technologies. Since the first emission measurement system developed in 1964 following the launch of automobile emission control, HORIBA Group has continued strengthening emission control and advancing the emission reduction technologies as ...
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Mitigation measures to minimise traffic–generated noise pollution in Metropolitan Kuwait
Forty representative roadway locations were randomly selected for monitoring traffic flow and noise levels. At local streets, equivalent noise level (Leq) ranged between 56 to 71; at collector streets traffic areas 70 to 83; at arterial roadway 75 to 86 and at freeway roadway areas 75 to 88 dBA during day and night time respectively. Consequently, the level of noise pollution from traffic even at ...
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Role of road side plantation in mitigating vehicular emission: a case study of district Swat, Pakistan
The objective of this study was to know the effectiveness of different tree species used for road side plantation in mitigating air pollution. The road was divided into four zones, i.e., peaches, poplar, eucalyptus, pine rich and treeless zone. The ambient air was monitored periodically over a period of one year with three month intervals. The data was statistically analysed with analysis of ...
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Traffic emission effects on ambient air pollution by PM2.5–related PAH in Upper Silesia, Poland
The ambient concentration of particle–bound polycyclic aromatic hydrocarbons (PAHs) was investigated in two industrial towns in Upper Silesia, Poland. The 24 h samples of PM2.5 (particles with aerodynamic diameter ≤ 2.5 µm) were collected simultaneously at busy roads (or crossroads) and at an urban background site. Additionally, the samples were collected during the heaviest traffic density (rush ...
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3 Challenges Facing India’s Growing Cities
Population growth and rapid urbanization are combining to create huge challenges for Indian cities. According to McKinsey, the country’s cities are expected to grow from 340 million people in 2008 to a whopping 590 million in 2030. Meeting demand for urban services in these cities will require US$ 1.1 trillion in capital investment over the next 20 years. Without the right design and ...
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Traffic reallocation impacts and automobile toxic pollutants emission for a general network in urban highway system: a second-best congestion pricing analysis
This paper examines temporal, spatial and modal effects of second-best congestion pricing schemes in traffic volume reallocation, traffic mode shifting and automobiles toxic pollutants emission control in urban road systems. A problem in two time periods (peak and off-peak) and two travel modes (private car and bus) on one-way network is analysed, and a second-best congestion pricing model with ...
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An investigation on correlation between traffic and climate variables with the amount of SO 2 and NO 2 pollutants and estimation of their emission using regression modelling analysis method (case study: Mazandaran – Iran)
Nowadays, one of the main reasons that contribute towards the worsening of air pollution is the growing expansion of transportation. The necessity of managing and controlling the air pollution by carrying out a scientific research and applying numerical methods to maintain a stable system is undeniable. In this research, the analysis and modelling of SO 2 and NO 2 pollutants were studied. ...
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